Re: 1956 Johnson 30 HP. shear pin brass or monel?

[William Jatzek]

by FrankR » Thu Aug 20, 2015 1:21 am
As you can see, 1956 was a year of change. The propeller was changed to allow slippage under impact, and a Monel pin went with it. The reason of course was to eliminate shear pin breaking and the need to replace it on the water. At the same time the prop nut was changed to accept a longer pin. So, actually, it depends on what prop you have on it and does it have the correct nut to go with it. I suppose it depends on run what you brung on the prop and use the pin that fits the nut. If you have concerns about doing that, use brass. ————————————————- VERY CONFUSING on what would be proper at this stage in the game. My engine is a 1956 Johnson 30 HP. and the propeller I am using was a NOS Johnson seahorse green prop. I bought the pin using the part number as per a original 1956 parts breakdown catalog and it was what I thought was a Monel pin which surprised me as I had this engine many years and I would make the shear pins out of a 1/4 ” dia. brass brazing rod. How would I know what would be proper now? Bill,